翻訳と辞書 Words near each other ・ 129th Field Artillery Regiment ・ 129th Illinois Volunteer Infantry Regiment ・ 129th Infantry Brigade (United Kingdom) ・ 129th Infantry Division (Wehrmacht) ・ 129th Infantry Regiment (United States) ・ 129th meridian ・ 129th meridian east ・ 129th meridian west ・ 129th New York State Legislature ・ 129th Ohio General Assembly ・ 129th Ohio Infantry ・ 129th Regiment of Foot ・ 129th Rescue Squadron ・ 127th Wing ・ 128 ・ 128 (number) ・ 128 BC ・ 128 Nemesis ・ 128 Records ・ 128 Securities ・ 128-bit ・ 1280 ・ 1280 AM ・ 1280 Baillauda ・ 1280 in Ireland ・ 1280 in Norway ・ 1280 in poetry ・ 1280 West ・ 128036 Rafaelnadal ・ 128065 Bartbenjamin Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク 128 (number) ： ウィキペディア英語版 128 (number) 128 (one hundred () twenty-eight) is the natural number following 127 and preceding 129. ==In mathematics== 128 is the seventh power of 2. It is the largest number which cannot be expressed as the sum of any number of distinct squares.〔OEIS:A001422. Similarly, the largest numbers that cannot be expressed as sums of distinct cubes and fourth powers, respectively, are 12758 and 5134240 .〕 But it is divisible by the total number of its divisors, making it a refactorable number.〔OEIS:A033950.〕 The sum of Euler's totient function φ(''x'') over the first twenty integers is 128.〔OEIS:A002088.〕 128 can be expressed by a combination of its digits with mathematical operators thus 128 = 28 - 1, making it a Friedman number in base 10.〔OEIS:A036057.〕 A hepteract has 128 vertices. 128 is the only 3-digit number that is a 7th power (27). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「128 (number)」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.